single-pole double throw

例句：

1. 1. The single-poledouble throw system is used in the productionof high-voltage electrical equipment.
   单极双掷系统用于生产高压电气设备。
2. 2. The engineer designed a new single-pole double throw switch for the factory's automation system.
   工程师为工厂的自动化系统设计了一个新的单极双掷开关。
3. 3.During the testing phase, the team successfullyimplemented a single-pole double throw mechanismto ensure smooth operation.
   在测试阶段，团队成功地实施了一个单极双掷机制，以确保顺畅运行。